TW201408093A - Load balancing method and related wireless communication device - Google Patents

Load balancing method and related wireless communication device Download PDF

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Publication number
TW201408093A
TW201408093A TW101127741A TW101127741A TW201408093A TW 201408093 A TW201408093 A TW 201408093A TW 101127741 A TW101127741 A TW 101127741A TW 101127741 A TW101127741 A TW 101127741A TW 201408093 A TW201408093 A TW 201408093A
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wireless communication
communication device
load
value
processing unit
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TW101127741A
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Chinese (zh)
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TWI521986B (en
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sheng-kun Shen
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Wistron Neweb Corp
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Priority to TW101127741A priority Critical patent/TWI521986B/en
Priority to US13/781,766 priority patent/US9426691B2/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0289—Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/06—Hybrid resource partitioning, e.g. channel borrowing
    • H04W16/08—Load shedding arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/32—Hierarchical cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/143—Downlink power control

Abstract

A load balancing method for a wireless communication device is disclosed. The load balancing method includes checking a total loading of the communication device, wherein the total loading includes a first loading of an omi-antenna and a second loading of a directional antenna, and adjusting transmission power of the wireless communication device according to the total loading and information sent by at least one neighbor wireless communication device, to perform load balancing.

Description

載量平衡之方法及其相關無線通訊裝置 Load balancing method and related wireless communication device

本發明係指一種載量平衡之方法及其相關無線通訊裝置，尤指一種用於一無線通訊裝置中載量平衡之方法及其相關無線通訊裝置。 The present invention relates to a method of load balancing and related wireless communication devices, and more particularly to a method for load balancing in a wireless communication device and related wireless communication device.

無線網路系統通常包含多個接入存取點(Access Point)，每一接入存取裝置利用無線方式與一個或數個用戶端通訊裝置(如手機、筆記型電腦或其他行動通訊裝置)進行通訊。用戶端通訊裝置皆包含一無線網路介面卡(Wireless Network Interface Card，WNIC)，負責處理與接入存取裝置來往之無線訊號，例如頻率掃描、無線封包偵測及傳輸等等。 A wireless network system typically includes multiple access points, each of which wirelessly communicates with one or more client devices (such as a cell phone, laptop, or other mobile device). Communicate. The client communication device includes a wireless network interface card (WNIC), which is responsible for processing wireless signals to and from the access device, such as frequency scanning, wireless packet detection and transmission, and the like.

由於無線通訊的技術快速發展，無線網路的使用率也日益提昇，目前常見的無線網路規範有IEEE802.11a、IEEE802.11b以及IEEE802.11g、IEEE802.11n四種，因此業者所推出的新式無線網路卡大多可以支援上述四種規格。當欲使用筆記型電腦連上無線網路時，該台筆記型電腦上的無線網卡必須先掃描其所在區域中有哪些可以連結的擷取點(access point,AP)，然後發出建立連結的請求給該擷取點。由於架設無線網路的費用越來越低廉，同一公共場合中可能分布了好幾台可使用的擷取點，舉例來說：在同一棟大樓中可能設置有五台擷取點，其中有兩台符合IEEE802.11a的規範，兩台 符合IEEE802.11b/g/n的規範，一台符合IEEE802.11b的規範，因此當無線網卡可以同時支援上述四種規格時，使用者就可以依據喜好任意連上其中一台擷取點，或者由使用者端的作業系統依據上述五台擷取點的功率強度自動選擇功率最強的擷取器來進行連結。然而，上述選取擷取點的方式可能因為同一大樓中使用者的分布不均以及擷取器功率強度不一等因素，而讓所有的使用者集中使用幾台特定的擷取點，進而使上述特定的擷取點的發生網路壅塞的情形，而其餘幾台擷取點卻閒置的狀況。 Due to the rapid development of wireless communication technology, the use rate of wireless networks is also increasing. Currently, the common wireless network specifications are IEEE802.11a, IEEE802.11b, IEEE802.11g, and IEEE802.11n, so the new models introduced by the industry. Most wireless network cards can support the above four specifications. When you want to use a laptop to connect to a wireless network, the wireless network card on the notebook must first scan the access points (APs) in the area where it can be connected, and then send a request to establish a link. Give this point. Since the cost of setting up a wireless network is getting lower and lower, there may be several access points available in the same public place. For example, there may be five access points in the same building, two of which Compliance with the IEEE802.11a specification, two It conforms to the IEEE802.11b/g/n specification and conforms to the IEEE802.11b specification. Therefore, when the wireless network card can simultaneously support the above four specifications, the user can arbitrarily connect one of the capture points according to the preference, or The working system of the user end automatically selects the most powerful picker according to the power intensity of the above five picking points to perform the connection. However, the above method of selecting points may be caused by the uneven distribution of users in the same building and the power intensity of the extractor, so that all users concentrate on using a few specific points, thereby making the above The specific point of occurrence of the network congestion occurs, while the remaining points are idle.

因此，本發明之主要目的在於提供一種用於一無線通訊裝置中載量平衡之方法，以解決該無線通訊裝置網路擁塞的情形。 Accordingly, it is a primary object of the present invention to provide a method for load balancing in a wireless communication device to address network congestion in the wireless communication device.

本發明揭露一種用於一無線通訊裝置中載量平衡之方法。該方法包含有檢查該無線通訊裝置之一淨負載量，其中該淨載量包含有一全向性天線之一第一負載量以及一指向性天線之一第二負載量；以及根據該無線通訊裝置之該淨負載量以及至少一鄰近無線通訊裝置所傳送之資訊，調整該無線通訊裝置之發射功率以執行載量平衡。 The present invention discloses a method for load balancing in a wireless communication device. The method includes checking a net load of the wireless communication device, wherein the payload includes a first load of one of an omnidirectional antenna and a second load of a directional antenna; and according to the wireless communication device The net load and the information transmitted by at least one of the adjacent wireless communication devices adjust the transmit power of the wireless communication device to perform load balancing.

本發明另揭露一無線通訊裝置。該無線通訊裝置包含有一無線模組、一定位單元以及一處理單元。該無線模組，用來接收至少一鄰近無線通訊裝置所傳送之資訊。該無線模組包含有一全向性天線；以及一指性向天線。該定位單元，用來用來確認該無線通訊裝置所 在的位置。該處理單元，用來檢查該無線通訊裝置之一淨負載量以及根據該無線通訊裝置之該淨負載量以及該至少一鄰近無線通訊裝置所傳送之資訊調整該無線通訊裝置之發射功率以執行載量平衡，其中該淨載量包含有該全向性天線之一第一負載量以及該指向性天線之一第二負載量。 The invention further discloses a wireless communication device. The wireless communication device comprises a wireless module, a positioning unit and a processing unit. The wireless module is configured to receive information transmitted by at least one neighboring wireless communication device. The wireless module includes an omnidirectional antenna; and a pointing antenna. The positioning unit is configured to confirm the wireless communication device In the location. The processing unit is configured to check a net load of the wireless communication device and adjust a transmit power of the wireless communication device according to the net load of the wireless communication device and information transmitted by the at least one neighboring wireless communication device to perform A quantity balance, wherein the payload comprises a first load of one of the omnidirectional antennas and a second load of the directional antenna.

本發明另揭露一無線通訊系統。該無線通訊系統包含有一第一無線通訊裝置一第一無線通訊裝置以及至少一第二無線通訊裝置。該第一無線通訊裝置包含有一第一無線模組、一第一定位單元以及一第一處理單元。該第一無線模組，用來傳送接收一位置資訊以及一援助請求。該無線模組包含有一第一全向性天線以及一第一指性向天線。該第一定位單元，用來產生該位置資訊。該第一處理單元，用來檢查該第一無線通訊裝置之一第一淨負載量以及根據該第一無線通訊裝置之該第一淨負載量調整該第一無線通訊裝置之發射功率以執行載量平衡，其中該第一淨負載量包含有該全向性天線之一第一負載量以及該指向性天線之一第二負載量；且用來根據該援助請求調整該第一無線通訊裝置之發射功率以執行載量平衡。該第二無線通訊裝置與該第一無線裝置功能相同。 The invention further discloses a wireless communication system. The wireless communication system includes a first wireless communication device, a first wireless communication device, and at least a second wireless communication device. The first wireless communication device includes a first wireless module, a first positioning unit, and a first processing unit. The first wireless module is configured to transmit and receive a location information and an assistance request. The wireless module includes a first omnidirectional antenna and a first directional antenna. The first positioning unit is configured to generate the location information. The first processing unit is configured to check a first net load of the first wireless communication device and adjust a transmit power of the first wireless communication device according to the first net load of the first wireless communication device to perform a load Balanced, wherein the first net load includes a first load amount of the omnidirectional antenna and a second load amount of the directional antenna; and is configured to adjust the first wireless communication device according to the assistance request Transmit power to perform load balancing. The second wireless communication device has the same function as the first wireless device.

請參考第1圖，第1圖為本發明實施例一無線通訊系統10之示意圖。無線通訊系統10包含有無線通訊裝置AP1、AP2、AP3(為方便說明，本實施例中僅示三個無線通訊裝置，而不限於此)以及 複數個用戶端(第1圖中以黑點表示)。無線通訊裝置AP1、AP2、AP3可為擷取點，透過無線方式與一個或數個用戶端(如手機、筆記型電腦或其他行動通訊裝置)進行通訊。無線通訊裝置AP1之涵蓋範圍為Z1，無線通訊裝置AP2之涵蓋範圍為Z2，無線通訊裝置AP3之涵蓋範圍為Z3。在涵蓋範圍Z1、Z2以及Z3內複數個用戶端的分布不均，而造成無線通訊裝置AP1發生網路壅塞的情形。 Please refer to FIG. 1. FIG. 1 is a schematic diagram of a wireless communication system 10 according to an embodiment of the present invention. The wireless communication system 10 includes wireless communication devices AP1, AP2, and AP3 (for convenience of description, only three wireless communication devices are shown in this embodiment, and are not limited thereto). Multiple clients (represented by black dots in Figure 1). The wireless communication devices AP1, AP2, and AP3 can be capture points and communicate wirelessly with one or more clients (such as mobile phones, notebook computers, or other mobile communication devices). The coverage of the wireless communication device AP1 is Z1, the coverage of the wireless communication device AP2 is Z2, and the coverage of the wireless communication device AP3 is Z3. In the coverage areas Z1, Z2, and Z3, the distribution of the plurality of clients is uneven, and the wireless communication device AP1 is in a network congestion situation.

請同時參閱第1圖與第2A圖以及第2B圖，第2A圖以及第2B圖為本發明實施例一流程20之示意圖。流程20用於第1圖之無線通訊裝置AP1中，用來執行載量平衡。流程20包含有下列步驟： Please refer to FIG. 1 and FIG. 2A and FIG. 2B simultaneously. FIG. 2A and FIG. 2B are schematic diagrams of a process 20 according to an embodiment of the present invention. The process 20 is used in the wireless communication device AP1 of FIG. 1 to perform load balancing. The process 20 includes the following steps:

步驟200：開始。 Step 200: Start.

步驟202：檢查無線通訊裝置AP1之一淨負載量NL1，其中淨載量NL1包含有一全向性天線之一負載量OL以及一指向性天線之一負載量DL。 Step 202: Checking a net load amount NL1 of the wireless communication device AP1, wherein the payload NL1 includes one of the omnidirectional antennas OL and one of the directional antennas DL.

步驟204：判斷淨負載量NL1是否大於一數值X1？若是，執行步驟210；若否，執行步驟206。 Step 204: Determine whether the net load amount NL1 is greater than a value X1? If yes, go to step 210; if no, go to step 206.

步驟206：判斷淨負載量NL1是否小於一數值X2？若是，執行步驟208；若否，執行步驟220。 Step 206: Determine whether the net load amount NL1 is less than a value X2? If yes, go to step 208; if no, go to step 220.

步驟208：判斷全向性天線之功率是否等於一最大值；若否則增加該全向性天線之功率。 Step 208: Determine whether the power of the omnidirectional antenna is equal to a maximum value; if otherwise, increase the power of the omnidirectional antenna.

步驟210：先判斷指向性天線的功率是否等於一最小值；若否則降低該指向性天線之功率。 Step 210: First determine whether the power of the directional antenna is equal to a minimum value; if otherwise, reduce the power of the directional antenna.

步驟212：判斷該全向性天線之負載量OL是否大於一數值X3？ 若是，執行步驟214；若否，執行步驟220。 Step 212: Determine whether the load OL of the omnidirectional antenna is greater than a value X3. If yes, go to step 214; if no, go to step 220.

步驟214：傳送一位置資訊以及一援助請求至無線通訊裝置AP2/無線通訊裝置AP3。 Step 214: Send a location information and an assistance request to the wireless communication device AP2/wireless communication device AP3.

步驟216：判斷該全向性天線之負載量OL是否大於一數值X4？若是，執行步驟218；若否，執行步驟220。 Step 216: Determine whether the load OL of the omnidirectional antenna is greater than a value X4. If yes, go to step 218; if no, go to step 220.

步驟218：判斷是否全向性天線的功率等於一最小值；若否則降低該全向性天線之功率。 Step 218: Determine whether the power of the omnidirectional antenna is equal to a minimum value; if otherwise, reduce the power of the omnidirectional antenna.

步驟220：結束。 Step 220: End.

根據流程20，當無線通訊裝置AP1之涵蓋範圍Z1內之用戶端過多而發生網路壅塞的情形時，無線通訊裝置AP1可調整無線通訊裝置AP1之發射功率以執行載量平衡。首先，無線通訊裝置AP1檢查本身淨負載量NL是否大於數值X1。若淨負載量NL沒有大於數值X1，無線通訊裝置AP1接著判斷淨負載量NL1是否小於數值X2。若淨負載量NL小於數值X2，無線通訊裝置AP1會先判斷全向性天線之功率是否等於最大值，若否則增加該全向性天線之功率。若淨負載量NL大於數值X1，無線通訊裝置AP1會先判斷指向性天線的功率是否等於最小值，若否則降低該指向性天線之功率。接著，無線通訊裝置AP1判斷該全向性天線之負載量OL是否大於數值X3。若負載量OL大於數值X3，無線通訊裝置AP1傳送該位置資訊以及該援助請求至無線通訊裝置AP2/無線通訊裝置AP3，以請求無線通訊裝置AP2/無線通訊裝置AP3之協助，以分擔無線通訊裝置AP1之負載量。當負載量OL大於數值X4時，無 線通訊裝置AP1會判斷是否全向性天線的功率等於最小值，若否則降低該全向性天線之功率。較佳地，數值X1大於數值X3且數值X4大於數值X3。舉例來說，X1可為90%、X2可為50%、X3可為80%、X4可為95%。即，當無線通訊裝置AP1判斷淨負載量NL大於90%時，無線通訊裝置AP1會先判斷指向性天線的功率是否等於最小值，若否則降低該指向性天線之功率。當無線通訊裝置AP1判斷淨負載量NL小於50%時，無線通訊裝置AP1增加該全向性天線之功率。當無線通訊裝置AP1判斷負載量OL大於80%時，無線通訊裝置AP1傳送該位置資訊以及該援助請求至無線通訊裝置AP2/無線通訊裝置AP3。當無線通訊裝置AP1判斷負載量OL大於95%時，無線通訊裝置AP1會判斷是否全向性天線的功率等於最小值，若否則降低該全向性天線之功率。需注意的是，數值X1、X2、X3以及X4本領域具通常知識者可根據網路之擁塞狀況決定，而不限於此。 According to the process 20, when the network congestion occurs in the coverage area Z1 of the wireless communication device AP1, the wireless communication device AP1 can adjust the transmission power of the wireless communication device AP1 to perform load balancing. First, the wireless communication device AP1 checks whether the net load amount NL itself is greater than the value X1. If the net load amount NL is not greater than the value X1, the wireless communication device AP1 then determines whether the net load amount NL1 is smaller than the value X2. If the net load NL is less than the value X2, the wireless communication device AP1 first determines whether the power of the omnidirectional antenna is equal to the maximum value, if otherwise increases the power of the omnidirectional antenna. If the net load NL is greater than the value X1, the wireless communication device AP1 first determines whether the power of the directional antenna is equal to the minimum value, if otherwise reduces the power of the directional antenna. Next, the wireless communication device AP1 determines whether the load amount OL of the omnidirectional antenna is greater than the value X3. If the load amount OL is greater than the value X3, the wireless communication device AP1 transmits the location information and the assistance request to the wireless communication device AP2/wireless communication device AP3 to request assistance of the wireless communication device AP2/wireless communication device AP3 to share the wireless communication device. The load of AP1. When the load OL is greater than the value X4, no The line communication device AP1 determines whether the power of the omnidirectional antenna is equal to the minimum value, if otherwise reduces the power of the omnidirectional antenna. Preferably, the value X1 is greater than the value X3 and the value X4 is greater than the value X3. For example, X1 can be 90%, X2 can be 50%, X3 can be 80%, and X4 can be 95%. That is, when the wireless communication device AP1 determines that the net load amount NL is greater than 90%, the wireless communication device AP1 first determines whether the power of the directional antenna is equal to the minimum value, if otherwise reduces the power of the directional antenna. When the wireless communication device AP1 determines that the net load amount NL is less than 50%, the wireless communication device AP1 increases the power of the omnidirectional antenna. When the wireless communication device AP1 determines that the load amount OL is greater than 80%, the wireless communication device AP1 transmits the location information and the assistance request to the wireless communication device AP2/wireless communication device AP3. When the wireless communication device AP1 determines that the load amount OL is greater than 95%, the wireless communication device AP1 determines whether the power of the omnidirectional antenna is equal to the minimum value, if otherwise reduces the power of the omnidirectional antenna. It should be noted that the values X1, X2, X3, and X4 can be determined by the general knowledge in the field according to the congestion condition of the network, and are not limited thereto.

進一步地，無線通訊裝置AP1可透過遞減之方式，以降低該全向性天線或該指向性天線之功率。無線通訊裝置AP1先檢查無線通訊裝置AP1之功率。若無線通訊裝置AP1之輸出功率並未到達最小功率，無線通訊裝置AP1減少輸出功率0.5dBm。無線通訊裝置AP1可透過遞增之方式，以增加該全向性天線或該指向性天線之功率。無線通訊裝置AP1先檢查無線通訊裝置AP1之功率。若無線通訊裝置AP1之輸出功率並未到達最大功率，無線通訊裝置AP1增加輸出功率0.5dBm。 Further, the wireless communication device AP1 can reduce the power of the omnidirectional antenna or the directional antenna by decreasing. The wireless communication device AP1 first checks the power of the wireless communication device AP1. If the output power of the wireless communication device AP1 does not reach the minimum power, the wireless communication device AP1 reduces the output power by 0.5 dBm. The wireless communication device AP1 can increase the power of the omnidirectional antenna or the directional antenna in an incremental manner. The wireless communication device AP1 first checks the power of the wireless communication device AP1. If the output power of the wireless communication device AP1 does not reach the maximum power, the wireless communication device AP1 increases the output power by 0.5 dBm.

另一方面，當無線通訊裝置AP2/無線通訊裝置AP3收到該位置資訊以及該援助請求時，無線通訊裝置AP2/無線通訊裝置AP3執行流程30，以執行載量平衡。流程30包含有下列步驟： On the other hand, when the wireless communication device AP2/wireless communication device AP3 receives the location information and the assistance request, the wireless communication device AP2/wireless communication device AP3 executes the flow 30 to perform load balancing. The process 30 includes the following steps:

步驟300：開始。 Step 300: Start.

步驟302：於接收該位置資訊以及該援助請求時，檢查無線通訊裝置AP2/無線通訊裝置AP3之一淨負載量NL2。 Step 302: When receiving the location information and the assistance request, check a net load amount NL2 of the wireless communication device AP2/wireless communication device AP3.

步驟304：判斷淨負載量NL2是否大於一數值X5？若是，執行步驟310；若否，執行步驟306。 Step 304: Determine whether the net load amount NL2 is greater than a value X5? If yes, go to step 310; if no, go to step 306.

步驟306：根據該位置資訊取得無線通訊裝置AP1之位置。 Step 306: Acquire a location of the wireless communication device AP1 according to the location information.

步驟308：設定無線通訊裝置AP2/無線通訊裝置AP3之指向性天線至一最大功率，並調整無線通訊裝置AP2/無線通訊裝置AP3之指向性天線之方向以指向無線通訊裝置AP1。 Step 308: Set the directional antenna of the wireless communication device AP2/wireless communication device AP3 to a maximum power, and adjust the direction of the directional antenna of the wireless communication device AP2/wireless communication device AP3 to point to the wireless communication device AP1.

步驟310：結束。 Step 310: End.

根據流程30，當無線通訊裝置AP2/無線通訊裝置AP3接收該位置資訊以及該援助請求時，檢查無線通訊裝置AP2/無線通訊裝置AP3之淨負載量NL2。若淨負載量NL2小於X5時，表示無線通訊裝置AP2/無線通訊裝置AP3有能力可分擔無線通訊裝置AP1之負載量。因此，無線通訊裝置AP2/無線通訊裝置AP3可根據該位置資訊取得無線通訊裝置AP1之位置，並設定無線通訊裝置AP2/無線通訊裝置AP3之指向性天線至最大功率，進一步調整無線通訊裝置AP2/無線通訊裝置AP3之指向性天線之方向以指向無線通 訊裝置AP1。因此，透過上述流程20以及30，無線通訊系統10若發生網路擁塞情形(例如：過多用戶端集中在某一台無線通訊裝置)時，無線通訊裝置AP1、AP2、AP3可相互協調，進行載量平衡，以解決網路擁塞的情況。 According to the process 30, when the wireless communication device AP2/wireless communication device AP3 receives the location information and the assistance request, the wireless load amount NL2 of the wireless communication device AP2/wireless communication device AP3 is checked. If the net load amount NL2 is less than X5, it indicates that the wireless communication device AP2/wireless communication device AP3 has the ability to share the load amount of the wireless communication device AP1. Therefore, the wireless communication device AP2/wireless communication device AP3 can obtain the location of the wireless communication device AP1 according to the location information, and set the directional antenna of the wireless communication device AP2/wireless communication device AP3 to the maximum power, and further adjust the wireless communication device AP2/ Direction of the directional antenna of the wireless communication device AP3 to point to the wireless communication Device AP1. Therefore, when the wireless communication system 10 is in a network congestion situation (for example, if too many users are concentrated in one wireless communication device), the wireless communication devices AP1, AP2, and AP3 can coordinate with each other to carry out the above-mentioned processes 20 and 30. Balanced to address network congestion.

需注意的是，流程20以及30可用於同一無線通訊裝置中，而不限定流程20以及30必須執行於兩台不同之無線通訊裝置。也就是說，當無線通訊裝置之淨負載量過大時，無線通訊裝置可請求鄰近的無線通訊裝置分擔負載量。而當鄰近的無線通訊裝置之淨負載量過大時，無線通訊裝置亦可執行載量平行，分擔負載量。如此一來，透過複數個無線通訊裝置間之溝通，可達成無線通訊系統內之載量平衡。 It should be noted that the processes 20 and 30 can be used in the same wireless communication device without limiting the processes 20 and 30 to be performed on two different wireless communication devices. That is to say, when the net load of the wireless communication device is too large, the wireless communication device can request the adjacent wireless communication device to share the load. When the net load of the adjacent wireless communication device is too large, the wireless communication device can also perform load parallel and share the load. In this way, the load balance between the wireless communication systems can be achieved through communication between a plurality of wireless communication devices.

請參考第4圖，第4圖為本發明實施例一無線通訊裝置40之示意圖。無線通訊裝置40可實現上述之無線通訊裝置AP1、AP2、AP3。無線通訊裝置40包含有一無線模組400、一定位單元402以及一處理器404。無線模組400，用來傳送接收無線資料(例如：位置資訊以及援助請求)。無線模組包含一全向性天線406以及一指向性天線408。其中，指向性天線可隨意調整方向，以方便接收傳送無線資料。定位單元402，用來根據所接收之無線資料，進行定位以取得鄰近無線通訊裝置之位置。處理器404用來檢查無線通訊裝置40之一淨負載量以及根據無線通訊裝置40之淨負載量以及該所接收之無線資訊調整(增加或降低)全向性天線406以及指向性天 線408之發射功率以執行載量平衡。無線通訊裝置40之詳細操作方式可參考上述流程20以及流程30，於此不在贅述。 Please refer to FIG. 4, which is a schematic diagram of a wireless communication device 40 according to an embodiment of the present invention. The wireless communication device 40 can implement the wireless communication devices AP1, AP2, and AP3 described above. The wireless communication device 40 includes a wireless module 400, a positioning unit 402, and a processor 404. The wireless module 400 is configured to transmit and receive wireless data (eg, location information and assistance requests). The wireless module includes an omnidirectional antenna 406 and a directional antenna 408. Among them, the directional antenna can be freely adjusted to facilitate receiving and transmitting wireless data. The positioning unit 402 is configured to perform positioning according to the received wireless data to obtain a location of the neighboring wireless communication device. The processor 404 is configured to check the net load of one of the wireless communication devices 40 and adjust (increase or decrease) the omnidirectional antenna 406 and the directional day according to the net load of the wireless communication device 40 and the received wireless information. The transmit power of line 408 is used to perform load balancing. For detailed operation modes of the wireless communication device 40, refer to the foregoing process 20 and the process 30, which are not described herein.

綜上所述，當一無線通訊裝置之涵蓋範圍內之用戶端過多而發生網路壅塞的情形時，無線通訊裝置檢查本身淨負載量是否大於第一數值。若淨負載量大於第一數值，無線通訊裝置降低該指向性天線之功率。接著，無線通訊裝置AP1判斷其全向性天線之負載量是否大於第二數值。若全向性天線之負載量大於第二數值，無線通訊裝置傳送位置資訊以及援助請求至鄰近的無線通訊裝置，以請求協助，以分擔無線通訊裝置之負載量。當全向性天線之負載量大於第三數值時，無線通訊裝置則降低其全向性天線之功率。另一方面，當鄰近無線通訊裝置接收位置資訊以及援助請求時，鄰近無線通訊裝置檢查本身之淨負載量。若鄰近無線通訊裝置檢查本身之淨負載量小於第四數值時，鄰近無線通訊裝置可根據該位置資訊取得無線通訊裝置之位置，並設定指向性天線至最大功率，進一步調整指向性天線之方向至無線通訊裝置。簡單的來說，負載過大的無線通訊裝置可透過傳送位置資訊以及援助請求至鄰近的無線通訊裝置以進行載量平衡。當鄰近的無線通訊裝置接收到援助請求後，可協助分擔多於載量。因此，無線通訊裝置間可相互協調，進行載量平衡，以解決網路擁塞的情況。 In summary, when a network congestion occurs due to too many users in the coverage area of the wireless communication device, the wireless communication device checks whether the net load of the wireless communication device is greater than the first value. If the net load is greater than the first value, the wireless communication device reduces the power of the directional antenna. Next, the wireless communication device AP1 determines whether the load of the omnidirectional antenna is greater than the second value. If the load of the omnidirectional antenna is greater than the second value, the wireless communication device transmits the location information and the assistance request to the neighboring wireless communication device to request assistance to share the load of the wireless communication device. When the load of the omnidirectional antenna is greater than the third value, the wireless communication device reduces the power of its omnidirectional antenna. On the other hand, when the proximity wireless communication device receives the location information and the assistance request, the neighboring wireless communication device checks its own net load. If the proximity wireless communication device checks that the net load is less than the fourth value, the neighboring wireless communication device can obtain the location of the wireless communication device according to the location information, and set the directional antenna to the maximum power, and further adjust the direction of the directional antenna to Wireless communication device. Briefly, an over-loaded wireless communication device can load balance by transmitting location information and assistance requests to neighboring wireless communication devices. When the neighboring wireless communication device receives the assistance request, it can assist in sharing more than the load. Therefore, the wireless communication devices can coordinate with each other to balance the load to solve the network congestion.

以上所述僅為本發明之較佳實施例，凡依本發明申請專利範圍所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。 The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10‧‧‧無線通訊系統 10‧‧‧Wireless communication system

20‧‧‧流程 20‧‧‧ Process

200、202、204、206‧‧‧步驟 200, 202, 204, 206‧ ‧ steps

208、210、212、214‧‧‧步驟 208, 210, 212, 214‧‧ steps

216、218、220‧‧‧步驟 216, 218, 220‧ ‧ steps

30‧‧‧流程 30‧‧‧Process

300、302、304、306‧‧‧步驟 300, 302, 304, 306‧‧ steps

308、310‧‧‧步驟 308, 310‧‧‧ steps

40‧‧‧無線通訊裝置 40‧‧‧Wireless communication device

400‧‧‧無線模組 400‧‧‧Wireless Module

402‧‧‧定位單元 402‧‧‧ Positioning unit

404‧‧‧處理器 404‧‧‧ processor

406‧‧‧全向性天線 406‧‧‧ Omnidirectional antenna

408‧‧‧指向性天線 408‧‧‧Directional antenna

第1圖為本發明實施例一無線通訊系統之示意圖。 FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present invention.

第2A圖以及第2B圖為本發明實施例一流程之示意圖。 2A and 2B are schematic views showing a flow of an embodiment of the present invention.

第3圖為本發明實施例一流程之示意圖。 FIG. 3 is a schematic diagram of a process of an embodiment of the present invention.

第4圖為本發明實施例一無線通訊裝置之示意圖。 4 is a schematic diagram of a wireless communication device according to an embodiment of the present invention.

20‧‧‧流程 20‧‧‧ Process

200、202、204、206‧‧‧步驟 200, 202, 204, 206‧ ‧ steps

208、210、212、214‧‧‧步驟 208, 210, 212, 214‧‧ steps

216、218、220‧‧‧步驟 216, 218, 220‧ ‧ steps

Claims (15)

一種用於一無線通訊裝置中載量平衡之方法，該方法包含有：檢查該無線通訊裝置之一淨負載量，其中該淨載量包含有一全向性天線之一第一負載量以及一指向性天線之一第二負載量；以及根據該無線通訊裝置之該淨負載量以及至少一鄰近無線通訊裝置所傳送之資訊，調整該無線通訊裝置之發射功率以執行載量平衡。 A method for load balancing in a wireless communication device, the method comprising: checking a net load of the wireless communication device, wherein the payload comprises a first load of an omnidirectional antenna and a pointing a second load of the antenna; and adjusting the transmit power of the wireless communication device to perform load balancing based on the net load of the wireless communication device and information transmitted by at least one of the neighboring wireless communication devices. 如請求項1所述之方法，其中根據該無線通訊裝置之該淨負載量調整該無線通訊裝置之發射功率以執行載量平衡，包含有：於判斷該淨負載量大於一第一數值時，降低該指向性天線之功率；於判斷該第一負載量大於一第二數值時，傳送該無線通訊裝置之一位置資訊以及一援助請求至該至少一鄰近無線通訊裝置；以及於判斷該第一負載量大於一第三數值時，降低該全向性天線之功率。 The method of claim 1, wherein adjusting the transmit power of the wireless communication device according to the net load of the wireless communication device to perform load balancing comprises: when determining that the net load is greater than a first value, Reducing the power of the directional antenna; transmitting a location information of the wireless communication device and an assistance request to the at least one neighboring wireless communication device when determining that the first load is greater than a second value; and determining the first When the load is greater than a third value, the power of the omnidirectional antenna is reduced. 如請求項1所述之方法，其中根據該無線通訊裝置之該淨負載量調整該第一無線通訊裝置之發射功率以執行載量平衡，另包含有：於該淨負載量大於一第一數值時另包含於該淨負載量小於一第四數值時，增加該全向性天線之功率。 The method of claim 1, wherein the transmit power of the first wireless communication device is adjusted according to the net load of the wireless communication device to perform load balancing, and further comprising: the net load being greater than a first value The method further includes increasing the power of the omnidirectional antenna when the net load is less than a fourth value. 如請求項2所述之方法，其中該第一數值大於該第二數值且該第三數值大於該第二數值。 The method of claim 2, wherein the first value is greater than the second value and the third value is greater than the second value. 如請求項1所述之方法，其中根據該至少一鄰近無線通訊裝置所傳送之資訊調整該第一無線通訊裝置之發射功率以執行載量平衡，另包含有，該方法包含有：於接收該至少一鄰近無線通訊裝置所傳送之資訊時，檢查該無線通訊裝置之該淨負載量，其中該至少一鄰近無線通訊裝置所傳送之資訊包含有該至少一鄰近無線通訊裝置之位置資訊以及該至少一鄰近無線通訊裝置援助請求；於判斷該淨負載量小於一第五數值時，根據該至少一鄰近無線通訊裝置之位置資訊取得該至少一鄰近無線通訊裝置之位置；以及設定該指向性天線至一最大功率，並調整該指向性天線之方向以指向該至少一鄰近無線通訊裝置。 The method of claim 1, wherein the transmit power of the first wireless communication device is adjusted according to information transmitted by the at least one neighboring wireless communication device to perform load balancing, and the method further comprises: receiving the Checking the net load of the wireless communication device when at least one of the information transmitted by the wireless communication device is adjacent, wherein the information transmitted by the at least one neighboring wireless communication device includes location information of the at least one neighboring wireless communication device and the at least a neighboring wireless communication device assistance request; when determining that the net load is less than a fifth value, obtaining a location of the at least one neighboring wireless communication device according to location information of the at least one neighboring wireless communication device; and setting the directional antenna to a maximum power and adjusting the direction of the directional antenna to point to the at least one adjacent wireless communication device. 一無線通訊裝置，包含有：一無線模組，用來接收至少一鄰近無線通訊裝置所傳送之資訊，該無線模組包含有：一全向性天線；以及一指性向天線；一定位單元，用來確認該無線通訊裝置所在的位置；以及一處理單元，用來檢查該無線通訊裝置之一淨負載量以及根據該 無線通訊裝置之該淨負載量以及該至少一鄰近無線通訊裝置所傳送之資訊調整該無線通訊裝置之發射功率以執行載量平衡，其中該淨載量包含有該全向性天線之一第一負載量以及該指向性天線之一第二負載量。 A wireless communication device includes: a wireless module, configured to receive information transmitted by at least one neighboring wireless communication device, the wireless module comprising: an omnidirectional antenna; and a pointing antenna; a positioning unit, a location for confirming the wireless communication device; and a processing unit for checking a net load amount of the wireless communication device and according to the The net load of the wireless communication device and the information transmitted by the at least one neighboring wireless communication device adjust the transmit power of the wireless communication device to perform load balancing, wherein the payload includes one of the omnidirectional antennas. The amount of load and one of the second load of the directional antenna. 如請求項6所述之無線通訊裝置，其中該處理單元根據該無線通訊裝置之該淨負載量調整該無線通訊裝置之發射功率以執行載量平衡，包含有：於該處理單元判斷該淨負載量大於一第一數值時，該指向性天線降低該指向性天線之功率；於該處理單元判斷該第一負載量大於一第二數值時，該指向性天線傳送該無線通訊裝置之一位置資訊以及一援助請求至該至少一鄰近無線通訊裝置；以及於該處理單元判斷該第一負載量大於一第三數值時，該全向性天線降低該全向性天線之功率。 The wireless communication device of claim 6, wherein the processing unit adjusts a transmit power of the wireless communication device according to the net load of the wireless communication device to perform load balancing, including: determining, by the processing unit, the net load When the amount is greater than a first value, the directional antenna reduces the power of the directional antenna; and when the processing unit determines that the first load is greater than a second value, the directional antenna transmits a location information of the wireless communication device. And an assistance request to the at least one neighboring wireless communication device; and when the processing unit determines that the first load amount is greater than a third value, the omnidirectional antenna reduces the power of the omnidirectional antenna. 如請求項6所述之無線通訊裝置，其中該處理單元根據該無線通訊裝置之該淨負載量調整該無線通訊裝置之發射功率以執行載量平衡，另包含有：於該處理單元判斷該淨負載量小於一第四數值時，該全向性天線增加該全向性天線之功率。 The wireless communication device of claim 6, wherein the processing unit adjusts a transmit power of the wireless communication device according to the net load of the wireless communication device to perform load balancing, and further includes: determining, by the processing unit, the net When the load is less than a fourth value, the omnidirectional antenna increases the power of the omnidirectional antenna. 如請求項6所述之無線通訊裝置，其中該第一數值大於該第二數值且該第三數值大於該第二數值。 The wireless communication device of claim 6, wherein the first value is greater than the second value and the third value is greater than the second value. 如請求項6所述之無線通訊裝置，其中該處理單元根據該至少一鄰近無線通訊裝置所傳送之資訊調整該無線通訊裝置之發射功率以執行載量平衡，包含有：於該全向性天線以及該指向性天線接收該至少一鄰近無線通訊裝置所傳送之資訊時，該處理單元檢查該淨負載量，其中該至少一鄰近無線通訊裝置所傳送之資訊包含有該至少一鄰近無線通訊裝置之位置資訊以及該至少一鄰近無線通訊裝置援助請求；於該處理單元判斷該淨負載量小於一第五數值時，該定位單元根據該至少一鄰近無線通訊裝置之位置資訊取得該至少一鄰近無線通訊裝置之位置；以及該處理單元設定該指向性天線至一最大功率，並調整該指向性天線之方向以指向該至少一鄰近無線通訊裝置。 The wireless communication device of claim 6, wherein the processing unit adjusts a transmit power of the wireless communication device to perform load balancing according to information transmitted by the at least one neighboring wireless communication device, including: the omnidirectional antenna And the processing unit checks the net load when the directional antenna receives the information transmitted by the at least one neighboring wireless communication device, wherein the information transmitted by the at least one neighboring wireless communication device includes the at least one neighboring wireless communication device The location information and the at least one neighboring wireless communication device assistance request; when the processing unit determines that the net load is less than a fifth value, the positioning unit obtains the at least one proximity wireless communication according to the location information of the at least one neighboring wireless communication device a location of the device; and the processing unit sets the directional antenna to a maximum power and adjusts a direction of the directional antenna to point to the at least one neighboring wireless communication device. 一無線通訊系統，包含有：一第一無線通訊裝置，用來執行載量平衡，該第一無線通訊裝置包含有：一第一無線模組，用來傳送或接收一位置資訊以及一援助請求，該第一無線模組包含有：一第一全向性天線；以及一第一指性向天線；一第一定位單元，用來產生該位置資訊；以及 一第一處理單元，用來檢查該第一無線通訊裝置之一第一淨負載量以及根據該第一無線通訊裝置之該第一淨負載量調整該第一無線通訊裝置之發射功率以執行載量平衡，其中該第一淨負載量包含有該全向性天線之一第一負載量以及該指向性天線之一第二負載量；至少一第二無線通訊裝置，用來執行載量平衡，該第二無線通訊裝置包含有：一第二無線模組，用來接收該位置資訊以及該援助請求，該第二無線模組包含有：一第二全向性天線；以及一第二指性向天線；一第二定位單元，用來根據該位置資訊取得該第一無線通訊裝置之位置；以及一第二處理單元，用來根據該援助請求調整該至少一第二無線通訊裝置之發射功率以執行載量平衡。 A wireless communication system includes: a first wireless communication device for performing load balancing, the first wireless communication device comprising: a first wireless module for transmitting or receiving a location information and an assistance request The first wireless module includes: a first omnidirectional antenna; and a first directional antenna; a first locating unit configured to generate the location information; a first processing unit, configured to check a first net load of the first wireless communication device and adjust a transmit power of the first wireless communication device according to the first net load of the first wireless communication device to perform a load Balanced, wherein the first net load comprises a first load of the omnidirectional antenna and a second load of the directional antenna; at least one second wireless communication device for performing load balancing, The second wireless communication device includes: a second wireless module, configured to receive the location information and the assistance request, the second wireless module includes: a second omnidirectional antenna; and a second directionality An antenna; a second positioning unit configured to obtain the location of the first wireless communication device according to the location information; and a second processing unit configured to adjust a transmit power of the at least one second wireless communication device according to the assistance request Perform load balancing. 如請求項11所述之無線通訊系統，其中該第一處理單元根據該第一無線通訊裝置之該第一淨負載量調整該第一無線通訊裝置之發射功率以執行載量平衡，包含有：於該第一處理單元判斷該第一淨負載量大於一第一數值時，該第一指向性天線降低該第一指向性天線之功率； 於該第一處理單元判斷該第一負載量大於一第二數值時，該第一指向性天線傳送該位置資訊以及該援助請求至該至少一第二無線通訊裝置；以及於該第一處理單元判斷該第一負載量大於一第三數值時，該第一全向性天線降低該第一全向性天線之功率。 The wireless communication system of claim 11, wherein the first processing unit adjusts a transmit power of the first wireless communication device according to the first net load of the first wireless communication device to perform load balancing, including: When the first processing unit determines that the first net load is greater than a first value, the first directional antenna reduces the power of the first directional antenna; When the first processing unit determines that the first load amount is greater than a second value, the first directional antenna transmits the location information and the assistance request to the at least one second wireless communication device; and the first processing unit When the first load amount is greater than a third value, the first omnidirectional antenna reduces the power of the first omnidirectional antenna. 如請求項11所述之無線通訊系統，其中該第一處理單元根據該第一無線通訊裝置之該第一淨負載量調整該第一無線通訊裝置之發射功率以執行載量平衡，另包含有：於該第一處理單元判斷該第一淨負載量小於一第四數值時，該第一全向性天線增加該第一全向性天線之功率。 The wireless communication system of claim 11, wherein the first processing unit adjusts a transmit power of the first wireless communication device to perform load balancing according to the first net load of the first wireless communication device, and further includes The first omnidirectional antenna increases the power of the first omnidirectional antenna when the first processing unit determines that the first net load is less than a fourth value. 如請求項11所述之無線通訊系統，其中該第一數值大於該第二數值且該第三數值大於該第二數值。 The wireless communication system of claim 11, wherein the first value is greater than the second value and the third value is greater than the second value. 如請求項11所述之無線通訊系統，其中該至少一第二處理單元根據該援助請求調整該至少一第二無線通訊裝置之發射功率以執行載量平衡，包含有：於該第二無線模組接收該援助請求時，該第二處理單元檢查該至少一第二無線通訊裝置之一第二淨負載量；於該第二處理單元判斷該第二淨負載量小於一第五數值時，該第二定位單元根據該位置資訊取得該第一無線通訊裝置之位置；以及 該第二處理單元設定該第二指向性天線至一最大功率，並調整該第二指向性天線之方向以指向該第一無線通訊裝置。 The wireless communication system of claim 11, wherein the at least one second processing unit adjusts a transmit power of the at least one second wireless communication device to perform load balancing according to the assistance request, including: the second wireless mode When the group receives the assistance request, the second processing unit checks a second net load of the at least one second wireless communication device; when the second processing unit determines that the second net load is less than a fifth value, the The second positioning unit acquires the location of the first wireless communication device according to the location information; The second processing unit sets the second directional antenna to a maximum power and adjusts the direction of the second directional antenna to point to the first wireless communication device.
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